Electrical testing jig and electrical testing equipment

Abstract

The utility model discloses an electrical logging jig and electrical logging equipment, comprising a first metal frame, a bearing frame, a second metal frame and an assembling slide bar, the first metal frame encloses a first accommodating cavity, the bottom of the first metal frame is provided with a bottom plate covering the first accommodating cavity, the bottom plate is provided with a first reinforcing structure, and the first reinforcing structure is provided with a second reinforcing structure; a second reinforcing structure is arranged on the side wall of the first metal frame and located at an opening of the first containing cavity, a first needle plate is installed on the bearing frame and supported by the second reinforcing structure, a second containing cavity is defined by the second metal frame, and a second needle plate covering the second containing cavity is installed at the bottom of the second metal frame. A top plate covering the second containing cavity is installed on the top of the second metal frame, the second metal frame is installed on the upper side of the first metal frame and can cover the bearing frame, the assembling sliding rod is installed on the top of the second metal frame, and the two ends of the assembling sliding rod are connected with the two opposite side walls of the second metal frame respectively. According to the utility model, the structural strength of the jig can be enhanced, and the test stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric measurement automation, in particular to an electric measurement fixture and electric measurement equipment. Background Art

[0002] Electrical test fixtures, especially ICT (Automated In-Circuit Tester) test fixtures, are essential testing equipment for PCBA (Printed Circuit Board Assembly) production in modern electronics companies. Existing test fixtures are not compatible with large PCBA testing. To accommodate these, the fixtures need to be larger to allow for more space for custom test structures. However, this increased size and weight can cause the fixture to deform during testing, impacting test stability. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an electrical testing fixture and an electrical testing device, which can enhance the structural strength of the fixture and improve the stability of the test.

[0004] In one aspect, an embodiment of the present invention provides an electrical testing fixture, comprising:

[0005] a first metal frame, enclosing a first accommodating cavity; a bottom plate covering the first accommodating cavity is mounted on the bottom of the first metal frame; a first reinforcement structure is mounted on the bottom plate; and a second reinforcement structure is disposed on the sidewall of the first metal frame at the opening of the first accommodating cavity;

[0006] A carrying frame is mounted with a first needle plate, wherein the first needle plate is directly or indirectly supported by the second reinforcement structure;

[0007] a second metal frame, enclosing a second accommodating cavity; a second needle plate covering the second accommodating cavity being mounted on the bottom of the second metal frame; a top plate covering the second accommodating cavity being mounted on the top of the second metal frame; the second metal frame being mounted on the upper side of the first metal frame and capable of covering the carrier frame, so that a test cavity is formed between the second needle plate and the first needle plate;

[0008] The assembly slide bar is installed on the top of the second metal frame, and two ends of the assembly slide bar are respectively connected to the opposite side walls of the second metal frame.

[0009] According to some embodiments of the present invention, a flange portion is provided on the top of the side wall of the first metal frame, and the second reinforcement structure is installed on the side wall of the first metal frame and connected to the flange portion.

[0010] According to some embodiments of the present invention, there are multiple first reinforcement structures, and the multiple first reinforcement structures are arranged in a straight line, and two ends of each first reinforcement structure are respectively connected to the opposite two side walls of the first metal frame.

[0011] According to some embodiments of the present invention, a third reinforcement structure is connected between two adjacent first reinforcement structures.

[0012] According to some embodiments of the present invention, both the first metal frame and the second metal frame are aluminum frames.

[0013] According to some embodiments of the present invention, a carrier plate is installed in the carrier frame and on the upper side of the first needle plate. An aluminum frame is installed on the carrier plate, and the aluminum frame surrounds the outer side of the test cavity.

[0014] According to some embodiments of the present invention, the second metal frame has a first side wall and a second side wall opposite to each other, a first handle is installed on the first side of the second metal frame, and the second side of the second metal frame is hingedly connected to the aluminum frame.

[0015] According to some embodiments of the present invention, the second metal frame further has a third side wall and a fourth side wall opposite to each other, and the third side wall and the fourth side wall of the second metal frame are both connected to the aluminum frame via a buffer.

[0016] According to some embodiments of the present invention, a second handle is provided on the first side of the carrying frame, and the second side of the carrying frame or the second side of the first needle plate is hingedly connected to the first metal frame.

[0017] In a second aspect, an embodiment of the present invention provides an electrical testing device, including the above-mentioned electrical testing fixture.

[0018] The embodiments of the present invention have at least the following beneficial effects:

[0019] The first metal frame and the second metal frame are both metal frames with strong structural strength. A first reinforcement structure and a second reinforcement structure are set in the first metal frame to further enhance the structural strength of the first metal frame. The two ends of the assembled sliding rod are respectively connected to the opposite side walls of the second metal frame, which is beneficial to enhancing the structural strength of the second metal frame. The first needle plate is supported by the second reinforcement structure, which is beneficial to improving the structural strength of the stress-bearing part, avoiding deformation of the fixture due to impact, and improving the stability of the test.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 This is one of the structural diagrams of the electrical testing fixture according to an embodiment of the present utility model;

[0023] Figure 2 This is the second structural diagram of the electric testing fixture according to an embodiment of the present utility model;

[0024] Figure 3 A schematic cross-sectional view of an electrical testing fixture according to an embodiment of the present invention;

[0025] Figure 4 for Figure 1 One of the partial structural diagrams of the electrical testing fixture shown;

[0026] Figure 5 for Figure 4 The schematic diagram of the structure of the partial structure of the electric testing fixture with the first needle plate hidden is shown;

[0027] Figure 6 for Figure 5 The middle circle shows a partial enlarged view of position A;

[0028] Figure 7 for Figure 1 The second schematic diagram of the partial structure of the electrical testing fixture is shown;

[0029] Figure 8 for Figure 1 The third schematic diagram of the partial structure of the electrical measuring fixture is shown.

[0030] Reference numerals:

[0031] First metal frame 100, first accommodating cavity 101, bottom plate 110, first reinforcement structure 120, second reinforcement structure 130, flange portion 140, third reinforcement structure 150, carrying frame 200, first needle plate 210, test cavity 211, aluminum frame 220, carrier plate 230, PCBA pallet 240, lifting mechanism 241, second handle 250, second metal frame 300, second accommodating cavity 301, second needle plate 310, top plate 320, first handle 330, buffer 340, assembly slide bar 400. DETAILED DESCRIPTION

[0032] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0034] In the description of this utility model, "several" means one or more, "multiple" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, and "above," "below," and "within" are understood to include the number itself. The use of terms such as "first" and "second" is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, or implicitly indicating the number or order of the technical features indicated.

[0035] In the description of the present invention, unless otherwise clearly defined, words such as “setting”, “installation”, and “connection” should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above words in the present invention based on the specific content of the technical solution.

[0036] Please refer to Figure 1 、 Figure 2 and Figure 3 This embodiment discloses an electrical testing fixture, including a first metal frame 100, a carrier frame 200, a second metal frame 300 and an assembly slide bar 400. The first metal frame 100 encloses a first accommodating cavity 101. A bottom plate 110 covering the first accommodating cavity 101 is installed at the bottom of the first metal frame 100. A first reinforcement structure 120 is installed on the bottom plate 110. Please refer to Figure 4 、 Figure 5 and Figure 6 The side wall of the first metal frame 100 is provided with a second reinforcement structure 130 at the opening position of the first accommodating cavity 101. The carrier frame 200 is provided with a first needle plate 210. The first needle plate 210 is directly or indirectly supported on the second reinforcement structure 130. Please refer to Figure 3 The second metal frame 300 surrounds a second accommodating cavity 301, and a second needle plate 310 covering the second accommodating cavity 301 is installed at the bottom of the second metal frame 300. A top plate 320 covering the second accommodating cavity 301 is installed on the top of the second metal frame 300. The second metal frame 300 is installed on the upper side of the first metal frame 100 and can cover the supporting frame 200 so that a test cavity 211 is formed between the second needle plate 310 and the first needle plate 210. The assembly slide rod 400 is installed on the top of the second metal frame 300, and the two ends of the assembly slide rod 400 are respectively connected to the opposite side walls of the second metal frame 300.

[0037] Among them, the first needle plate 210 is provided with a plurality of first test probes, and the signal transmission lines of the plurality of first test probes are arranged in the first accommodating cavity 101. Similarly, the second needle plate 310 is provided with a plurality of second test probes, and the signal transmission lines of the plurality of second test probes are arranged in the second accommodating cavity 301. The test cavity 211 is used to accommodate the workpiece to be tested, such as a PCBA. When the second metal frame 300 is covered on the carrier frame 200, the test probes on the first needle plate 210 can abut against the lower surface of the workpiece, and the second needle plate 310 can abut against the upper surface of the workpiece, thereby performing electrical testing on the upper and lower surfaces of the workpiece. The first reinforcement structure 120 and the second reinforcement structure 130 can both adopt a plate-shaped structure, a strip-shaped structure or a rod-shaped structure. The assembly slide bar 400 is used to connect the second metal frame 300 to an external testing machine, thereby driving the second metal frame 300 to move closer to or away from the carrier frame 200 in the longitudinal direction.

[0038] The first metal frame 100 and the second metal frame 300 are both metal frames with strong structural strength. A first reinforcement structure 120 and a second reinforcement structure 130 are set in the first metal frame 100 to further enhance the structural strength of the first metal frame 100. The two ends of the assembly slide bar 400 are respectively connected to the opposite side walls of the second metal frame 300, which is beneficial to enhancing the structural strength of the second metal frame 300. The first needle plate 210 is supported by the second reinforcement structure 130, which is beneficial to improving the structural strength of the stress-bearing part, avoiding deformation of the fixture due to impact, and improving the stability of the test.

[0039] Please refer to Figure 5 and Figure 6 The top of the side wall of the first metal frame 100 is provided with a flange portion 140, and the second reinforcement structure 130 is installed on the side wall of the first metal frame 100 and is connected to the flange portion 140. The second reinforcement structure 130 can increase the thickness of the side wall of the first metal frame 100, and can support the flange portion 140. When in use, the second metal frame 300 drives the second needle plate 310 to press down, and the impact force of the second needle plate 310 pressing down is transmitted to the first metal frame 100 through the first needle plate 210, and the flange portion 140 can increase the contact area between the first metal frame 100 and the first needle plate 210 to a certain extent, reduce the pressure, and support the flange portion 140 through the second reinforcement structure 130, which is conducive to improving the structural strength of the impact-bearing part, thereby improving durability.

[0040] Please refer to Figure 5There are multiple first reinforcement structures 120, which are arranged in a straight line. The two ends of each first reinforcement structure 120 are connected to opposite side walls of the first metal frame 100. For example, the first reinforcement structures 120 are three reinforcement plates, which are arranged in a straight line. The opposite ends of each reinforcement plate are connected to opposite side walls of the first metal frame 100, thereby providing support for multiple locations of the first metal frame 100. Even if the first metal frame 100 is large in size, it can still withstand significant deformation when subjected to external force due to its own structural strength and the support of the first reinforcement structures 120.

[0041] Please continue to refer to Figure 5 A third reinforcement structure 150 is connected between two adjacent first reinforcement structures 120. The first reinforcement structures 120 and the second reinforcement structures 130 support each other, providing support forces in different directions, thereby preventing significant deformation of the first metal frame 100. For example, the first reinforcement structures 120 and the second reinforcement structures 130 are both reinforcement plates, and the first reinforcement structures 120 and the second reinforcement structures 130 are vertically connected to form a grid-like support structure. This provides support for the sidewalls of the first metal frame 100, and the second reinforcement structures 130 can prevent the first reinforcement structures 120 from deflecting.

[0042] The first metal frame 100 and the second metal frame 300 are both made of aluminum. Aluminum is lightweight and has a certain degree of structural strength. Compared with other metal materials, aluminum frames can minimize the weight of larger fixtures and avoid the adverse effects of excessive weight.

[0043] Please refer to Figure 7 and Figure 8 A carrier plate 230 is installed in the carrier frame 200 and on the upper side of the first needle plate 210. An aluminum frame 220 is installed on the carrier plate 230. The aluminum frame 220 is arranged outside the test cavity 211. The carrier plate 230 is a ring structure. A avoidance cavity is set in the middle of the carrier plate 230. A PCBA support plate 240 (such as Figure 3 For example, PCBA support plate 240 is moved longitudinally by a lifting mechanism 241. When a PCBA needs to be placed, PCBA support plate 240 is lifted by lifting mechanism 241. After the PCBA is placed, PCBA support plate 240 is lowered by lifting mechanism 241. Lifting mechanism 241 can be a power element such as a pneumatic cylinder, an electric cylinder, or a motor. Positioning pins can be provided on lifting mechanism 241 to position the PCBA.

[0044] The electrical test fixture of this embodiment can be used for automated testing or manual testing. As described above, the second metal frame 300 is connected to an external test machine by assembling the slide bar 400, thereby realizing automated testing through the test machine. For manual testing, the second metal frame 300 can be opened or closed manually. For example, please refer to Figure 7 and Figure 8 The second metal frame 300 has a first side wall and a second side wall opposite to each other. A first handle 330 is installed on the first side of the second metal frame 300. The second side of the second metal frame 300 is hingedly connected to the aluminum frame 220. Figure 7 During manual testing, the operator opens the second metal frame 300 through the first handle 330 , so that the second metal frame 300 rotates around the hinge end.

[0045] The second metal frame 300 also has opposing third and fourth side walls, each of which is connected to the aluminum frame 220 via a buffer 340. The buffer 340 can be a gas spring. When the second metal frame 300 is open, the buffer 340 supports the second metal frame 300, preventing it from automatically closing under gravity. When the second metal frame 300 needs to be closed, the buffer 340 prevents the second metal frame 300 from closing too quickly and causing a significant impact on the first metal frame 100, thereby improving the durability of the fixture. The hinged structure between the second metal frame 300 and the aluminum frame 220, as well as the buffer 340, are both detachable, allowing for switching between manual and automatic testing modes based on actual application requirements.

[0046] Please refer to Figure 4 、 Figure 5 and Figure 6 The first side of the carrier frame 200 is provided with a second handle 250, and the second side of the carrier frame 200 or the second side of the first needle plate 210 is hingedly connected to the first metal frame 100, and the hinge end is as shown in FIG. Figure 6 During the maintenance phase, the second handle 250 can be used to move the carrier frame 200, thereby driving the first pin plate 210 to open, thereby exposing the electrical components or circuits located in the first metal frame 100 for maintenance.

[0047] The present embodiment provides an electrical testing device, including the above-mentioned electrical testing fixture. The structure of the electrical testing fixture can be referred to above and will not be repeated here. The first metal frame 100 and the second metal frame 300 are both metal frames with strong structural strength. A first reinforcement structure 120 and a second reinforcement structure 130 are set in the first metal frame 100 to further enhance the structural strength of the first metal frame 100. The two ends of the assembled sliding rod 400 are respectively connected to the opposite side walls of the second metal frame 300, which is beneficial to enhancing the structural strength of the second metal frame 300. The first needle plate 210 is supported by the second reinforcement structure 130, which is beneficial to improving the structural strength of the force-bearing part, avoiding deformation of the fixture due to impact, and improving the stability of the test.

[0048] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An electrical testing fixture, characterized in that: include: A first metal frame (100) encloses a first accommodating cavity (101); a bottom plate (110) covering the first accommodating cavity (101) is installed at the bottom of the first metal frame (100); a first reinforcement structure (120) is installed on the bottom plate (110); and a second reinforcement structure (130) is provided on the side wall of the first metal frame (100) and at the opening position of the first accommodating cavity (101); A carrying frame (200) is mounted with a first needle plate (210), wherein the first needle plate (210) is directly or indirectly supported on the second reinforcement structure (130); A second metal frame (300) encloses a second accommodating cavity (301); a second needle plate (310) covering the second accommodating cavity (301) is installed at the bottom of the second metal frame (300); a top plate (320) covering the second accommodating cavity (301) is installed at the top of the second metal frame (300); the second metal frame (300) is installed on the upper side of the first metal frame (100) and can cover the supporting frame (200) so that a test cavity (211) is formed between the second needle plate (310) and the first needle plate (210); An assembly slide bar (400) is mounted on the top of the second metal frame (300), and two ends of the assembly slide bar (400) are respectively connected to two opposite side walls of the second metal frame (300).

2. The electrical testing jig according to claim 1, characterized in that: A flange portion (140) is provided at the top of the side wall of the first metal frame (100), and the second reinforcement structure (130) is installed on the side wall of the first metal frame (100) and connected to the flange portion (140).

3. The electrical testing jig according to claim 1, characterized in that: There are multiple first reinforcement structures (120), and the multiple first reinforcement structures (120) are arranged in a straight line, with both ends of each first reinforcement structure (120) respectively connected to the opposite two side walls of the first metal frame (100).

4. The electrical testing jig according to claim 1 or 3, characterized in that: A third reinforcement structure (150) is connected between two adjacent first reinforcement structures (120).

5. The electrical testing jig according to claim 1, 2 or 3, characterized in that: The first metal frame (100) and the second metal frame (300) are both aluminum frames.

6. The electrical testing jig according to claim 1, characterized in that: A carrier plate (230) is installed in the carrier frame (200) and on the upper side of the first needle plate (210). An aluminum frame (220) is installed on the carrier plate (230). The aluminum frame (220) is arranged around the outside of the test cavity (211).

7. The electrical testing jig according to claim 6, characterized in that: The second metal frame (300) has a first side wall and a second side wall that are opposite to each other; a first handle (330) is installed on the first side of the second metal frame (300); and a second side of the second metal frame (300) is hingedly connected to the aluminum frame (220).

8. The electrical testing jig according to claim 7, characterized in that: The second metal frame (300) further has a third side wall and a fourth side wall that are opposite to each other, and both the third side wall and the fourth side wall of the second metal frame (300) are connected to the aluminum frame (220) via a buffer (340).

9. The electrical testing jig according to any one of claims 1, 6 to 8, characterized in that: A second handle (250) is provided on the first side of the carrying frame (200), and the second side of the carrying frame (200) or the second side of the first needle plate (210) is hingedly connected to the first metal frame (100).

10. An electrical measuring device, characterized in that: The invention comprises the electrical testing jig according to any one of claims 1 to 9.

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